Subtracting device for change-giving apparatus.



.S. GHIGER. SUBTRAOTING DEVICE FOR GHANGE GIVING APPARATUS.

APPLICATION FILED FIB-3.18, 1913.

Patented Nov. 11, 1913.

2 SHEETS-SHEET 1.

S. GHIGER. SUBTRAGT-ING DEVICE FOR CHANGE GIVING APPARATUS.

APPLICATION FILED IBB.18, 1918. 1,078,085. 49

i 2 SHEETS-SHEET 2.

, Patented Nov. 11, 1 913.

residing at 65 Change-Giving Apparatus, fpllowing is a specification;

SIEGMUND CHIGER, OF BERLIN, GERMANY.

SUBTRACTING DEVICE FOR CHANGE-GIVING APPARATUS.

Specification of Letters Iatent,

" Patented Nov. 11, 1913'.

Application filed February 18, 1913. Serial No. 749,171.

To all whom it may concern: a

Be it known that I, SIEGMUND Cmenn, a subject of the Emperor of Anstriafiungary, Kurfiirstendamm, Berlin, Germany, have invented new and usefulImproven'ients in. Subtracting Devices for of which the The presentinvention relates to apparatus for giving change or for subtracting, ofthe kind wherein a movable part corresponds to each figure of theminuendor subtrahend, which movable partis first set in accordancepwiththe-valueof the corresponding fi are of the subtrahend, is then coupledwit a device, for instance a disk provided with, projections forcoupling or actuating the change ejecting devices, and is finally setaccording to the value 01; the correspondin figure of the minuend. Inde-- vices of t e above kind, the disks or members having projectionsfor coupling or bringing into action the change delivering devices, aremoved from the zero position through amounts 1 corresponding to thecliangeto be iv n. and are thus'brought into the operative positions;This arrangement re 'uires that in subtracting the units, tens orundredsvand so on of the subtrahend from the next higher figures of theminuend, the disks corresponding to the higher figures be moved,backward by one division in order that the proper change be delivered.

The object of'the invention is to obviate the necessity of baekwardlyrotating or set ting the disks. This'is obtained in accord ance with theinvention by arranging the initial positions of the disks correspondingto the tens, hundreds and higher figures as shifted backward by onedivision usually one tenth of a revolution from the zero posltions ofthe said disks, so that the disksv in their initial positions have thoseprojections in the operative positions which serve for coupling orrendering operative the delivering devices of" 9 units of the respectivefigures, that is the pfennig-tens, the

mark-units and the mark-tensyancl so on. After the disks have been set,suitable devices adapted to'be thrown into and out of gear are broughtinto action and turn the I disks forward-by one division or one tenthofa. revolution.

'The accompanying drawings show by ,ative positions. 7 The disks 1,

' p1eces,

vention.

Figure 1 isa diagrammatic view of one part of the apparatus. Fig. 2 is asection on line A-A of Fig. 1, Fig. 3 is a "section on line B"B of Fig.1, Fig.4 is a'diagramway of example one construction of the inmatic Viewof one part of the apparatus in the initial position views at parts ofthe. apparatusin the oper- 1, 1" serving for coupling or bringing into.aetionthe coin ejectors are provided with projections I, II, III, IV,,V,VI, VII, VIII, IX, and are rotatably mounted upon-a shaft 2. They areconnected with gears 3, 3 ,3" (Figs. 1 and 2) and are moved inaccordance with the amount of change to be'given, whereby, correspondingprojections of the disks are brought into the operative position. In itsoperative position the projection I of the disk 1 serves for coupling.or bringing into act-ion ,the delivery device of the l-pfennig theprojection I of the disk 1 serves foncoupling or bringing into actionthe do; liveryv device of they 10pfennig pieces, the projection I of thedisk 1'? serves for coupling the delivery device of l-mark pieces. In asimilar manner the projection II of the disk 1 serves for coupling orthrowing in the delivery device of the Q-pfennig pieces, the project onII of the disk 1 for coupling or throwing in thedelivery device of twoIO-pfennig pieces, the projection II of'th'e disk 1 for coupling orthrowing in the delivery device of two l mark pieces and so on. Thedelivery devices of the operation and the manner of coupling. the sameto the drivingmeans are descrlbed in my copenddisk 1 is therefore of ahigher order than Figs. 5 and 6 are detail the disk 1,. and the disk 1"is of a higher order than the disk 1.' v

The setting of the disks 1, l, 1" into the operative position fordelivering 'a certain change may be'efi'ected in some cases by means ofsuitable operating member or slides 4, 4:,4" alone, or itmay in 'other 1a H are prov ded wlth toothed cases take place through the intermediaryof ratchet gears which actuate pawls 5, 5

withthe disk 1.

marked from ti X. The to the disk-'1, the scale 8 cooperating withratchet gears 6', 6" of which the ratchet gear 6 is connected to thedisk 1 and the ratchet gear 6" is connected The operating members orslides 4, 4, serving for setting the disks are provided with pointersscales 8, 8, 8"' having suitable divisions scale 8 corresponds tothedisk 1, and the scale 8" to thedisk '1". For the pur we of transmittingthe movement of the sl des 4', 4 to-the disks 1 1, 1", the former racks9, 9' j9 into which may engage gears 10, 10-

which are rotata blymountedbut longitudinally indisplaceablej upon ashaft 11 which by means-f may be moved longitudinally a knob 12 or thelike. In Fig. 1 th 10, 10, 10", are shown in full lines ini'theirinoperative position, the 0 erative positions being indicated by dotted'nes. In the latter positions the gears 10, 10', 10" engage on e gearsthe one hand into the racks 9, 9', and

I on the other hand into .13", which latter are connected with racks asd ' the pointer 7 is scale 8.

the racks 13, 13,

14 14' 14" en a 'n into the ears 3, 3 3" If for inst nfl i he slide 4 iimoved' td such an extent as to cause the pointer 7 to the scale 8, thefrom its initial ot the gear 10 and the racks 9'and 13'. If the slide 4be moved three divisions, the corresponding drum is moved three-tenthsof a revolution, and so on. a

If, for instance, the amount of purchase is 3 pfennigs and the amountaid is 5 pfennigs, so that 2 pfennigs shou d be paid by the apparatus aschange, the drum 1 is set as follows: The slide 4'is first set inaccordance with the amount of purchase,that is, it is moved from thezero position until opposite division III on The gears 10, 10, 10 arenow moved into the dotted position and the slide 4 is set in accordancewith the amount paid, that is,-'it is furtherm-oveduntil its pointer 7is opposite V on scale 8. During the latter movement of the slide 4 thedrum 1 has been moved from the zero position two-tenths of a revolution,so that its-projection II is now in the operative osition. The drums 1and 1 have remalned in their initial positlons, that is in suchpositions in which their RI'OJGCiLlOIlS IX are 1n the operativepositions. They must now be moved into the zero position in order thatthe delivery devlces corresponding to pfennigs tens, marks and 10 marksshould remain inoperative, and in order that the proper change consistmgof 2 pfenni should be delivered. The rums 1' and 1 therefore receive bya supl which move over suitable 15 enter into the holes {disks 15 and15", are provided with slots into which take pins 19 of mounted rods 20and 20".

and 20 are When the crank direction the coupling members 16' plementarydevice an additional movement corresponding to one-tenth of arevolution. For this purpose coupling disks 15', 15" are mounted upon ashaft 51 (Fig. 4) so as to be freely revoluble thereon 'but immovablelongitudinally. These disks are adapt: ed to be coupled with othercoupling members 16 and 16". The latter coupling members arenon-revolubly but longitudinally displaceably mounted upon the shaft 51,and are provided with plus 17 which upon the movement of the couplingparts 16 and or openings of the coupling disks l5and 15".' he couplingslidably The rods 20' rovided with awls 5' 5". i i? 51 -is arrange acrank 21. is moved in the clockwise and 16 carry with them the couplingdisks 15' and 15 so that the rods 20 and 20 are moved causing the pawls5 and-5 to operate the ratchet wheels 6 and 6" and also causing thecorresponding drums-to be rotated forwardly one-tenth of a revolution,whereby in accordance with the example referred to these drums are movedinto the zero position. The drums must of course after the object ofthis adjustment has been attained, be returned into the initialpositions. The rearward movement is obtained by a spring 0; In order toprevent the drums after they have been set rotating backward under theinfluence of the spring 0, locking pawls p. are provided which engagethe ratchet wheels. These locking awls p are operated by a cam shaft 1',w ich latter may be rotated by means of acrank 8. If the pawls arebrought out of engagement with the ratchet wheels by turning the camshaft 1', the drums rotate backward under the influence of the spring 0until a pin t (see Fig. 2) fixed .to the drum strikes'a ainst the arm 9which is rotatably mountetI at u and rests against a fixed stop 10. Theprojection holds the drum in the initial'or zero position.

If, for instance, a 10-pfennig piece be paid in and the amount ofpurchase be 3 pfennigs, theoperation is as follows: The slide oroperating member 4 is moved from 0 to 3. The gears 10, 1O, 10 are thenmoved into the position indicated by dotted lines and the slide 4 ismoved from O to I, and the slide 4 is moved from III to X. Thisoperation causes the drum 1 to be moved into the zero position and thedrum 1 is moved n'o a position in which the projection VII 12 is in theoperative position. In order that the drum 1' should not upon theturning of the crank 21 be wrongly moved from its zero position, thefollowing arrangement is provided: The slide 4 is provided or mm Uponthe sha ,nected to a toothed rack 22' which possesses- '9 teeth andserves for throwing the coupling inmostmember 16 out of engagement. withthe coupling dish 15 whenever the slide v4' ismoved from the zeroposition to either I, II, or III or any other point up to IXupon itsscale, as'shown in Fig. 6. Forthis purpose the toothedrack 22 engagesupon movement ofthe slide 4'- with a projection 23 of a lever 24 whichis pivoted at 25 and is-connected to a forked lever 27' which takes intoa groove 26 of the coupling member 16.

By-moving the slide 4 to the position I of its corresponding scale, thecoupling 15, 16' has therefore been released (Fig. 6).

I If the crank-21is now moved in the clock wise direction, the pawl 5and. the drum 1 are not operated, and the latter, dru-mthereone-tenth ofa revolutionbythe turning of fore remains in the zero position. The drum1", however, has been moved forward the crank 21,-itis therefore in thezero position, so that-the proper change consisting of 7 pfennigs willbe delivered. After -,the crank 21 has been turned the coupling mem bers16, 16. must always-be returned into the coupling position. This iseffected by the followingdevice: Upon alongitudinally movable-shaft 28which is parallel to the.

shaft 51 are secured arms 29 which by means of their free vends engagethe peripheral portions of the coupling members 16, 16"" in such amanner as to be carried by these members when the latter are removedfrom the coupling disks 15 and'15. The end of the shaft 28' is providedwith a knob 30 which may be grasped when the coupling members are to bemoved. 1 v 1 If, for instance, the amount of purchase is 30 pfennigs,and if the amountactuallypaid consists of a -pfennig-piece, theoperationis as follows: The slide 4: is first moved= inaccordancewiththe amount of purchase from 0 to III. The gears 10, 10, 1O' are nowbrought into engagement with the racks 9 and 13 and the slide 4 is movedto V in accordance with the amount actually paid. Thedrum 1. originallyhad its projection IX inthe operative position and was afterward movedforwardly two-tenths ofa revolution so that as 'a result of the movementimparted thereto, the projection I isin the operative position. Bysetting.

ror, the shaft 28 should bev moved by pres-' sure upon the knob 30 eachtime before the zcrank -2l is turned, "those couplings 155-, are openedto then to be retracted.

:figures of the are zero. The' slide 4 is nowmovedfrom V itoX alon itsscale. Byjthe. movement; of

ated .bolt'- 36 which is 16' or 15"., 16 which be locked again; I Theshaft is If the amount of purchase-loch and the amount paid 1 mark, theoperation is as follows: In this case the slide/4 s :moved from Oto'V,whereupon. the gears :-10,-1o'-,

10 are moved into engagement with -the r cks =9 and 13. The slide 4isthen =moved. to I, whereby. the drum l'f is moved into the zeroposition. The slide .4. remains inthe zero position. as the correspondinminuendand the. subtrahen the slide 4. .the coupling115 16. has beenuncoupled. Onthe otherlhand. the-couling 15, 16. hasnot'been set bytheslide 4 It should; however,' beuncoupledras the projection IK' shouldremain. in the operative osition when the crank 21 ais movedin theeockwise-direction as otherwise the proper change could not: bedelivered. For this purpose, an additional tooth 31 is provided upon theslide.;4., When the slide 4 is moved toX-of its scale, the tooth 31' ismoved 'against the projection 32 ofxa lever'33 which acts upon a rodor-bar 3'4 guided parallel to the-shaft 51; and'carries the bar or rod34- with it. This bar=34 is provided with whole 35 'into whiohmay'bemoved a spring actuided in a casing 3 8 andispressed biy a spring 39against a comcal portion-40' "of the, coupling member 16.-'

This conical portion of the coupling member 16'. operates during themovement of the coupling member the bolt 36, that is, it brings the bolt36 into engagement with the biarr34 orallows the latter to moveout'ofengagement. The movement of the bolt 36' in one direction therefore.corresponds to the movement of the coupling member 16 1n a certaindirection and the opposite movement of the'bolt corresponds tothe-opposite movement ofthe coupling member 16. Fig. 4' shows the bolt.36 coupled to the bar 34'.

The casing 38 is mounted in a guide way- 41 parallel to the bar 34 inwhich it maybe moved parallel to itself upto a stop 42; When the lever33 is moved bythe tooth 3.1 the bolt 36 is moved together with thecasing 38. During this movement thebolt acts upon a flange 43 of thecoupling member 16 and moves the latter out of engage-- ment with thecoupling disk 15. In order that .the coupling 15 16 should not be closedby. the longitudinal movement of the shaft28- which takes place beforethe turning of the crank 21, the following arrangement is provided: Tothe slides 4, 4' and 4 are connected toothed racks 44, 44 and 44. Whentheslides are moved to the points X of "their scales at least one ofthese racks comes into engagement with a toothed seg 1 this movement!causing ment arranged rack 45, and to toothed segments 45, 45 and 45"are shaft 28 thus causing the arms-29 to be- 10 couple these membersmounted upon a shaft 46, the rotation of which is transmitted bylevers-47 to the turned out of the path of the'coupling members 16 and164'. In th which is indicated in Fig. the arms 29 donot come into thecoupling 30 is pressed,are' fthere withTtlie disks15', 15". "After thesliaft QShas-been mot pressure upon the knob 30"and has moved back byposition indicate is new position.

7 been ulling the knob" into. the (i by dotted lines, the crank 21 isturned. Since the couplings 15, 16"

and 15", 16" areopened, the drums 1., are not influenced by" theiroperating gears, that is, th'edrum- 1" remains at 0, the drum '11remains at IX whilethedrum 1 remains at V; Over the end of the bar 34which is provided with the hole 35 takesthe end I move in one bar 34 hasbeen moved by casing- 38,

fore been opened. If the slide 4" coupling 15",16 woul .withthejbar 34and 34".

- 'tlon takes place for instance if of purchase is 1 of another bar 34.This end is provided with a hole 48' which is elongated and is so placedopposite the hole 35 that the bolt 36 may enter both holes successivelyand may couple the bars-34 and 34 to each other. Within the hole 48 thebolt 36 may direction, without carrying the bar 34'. While the coupling15, 16' is closed, the bolt 36 couples the bars'34 and 34. By moving theslide 4 to X, the lever.

33 has been turned by the tooth 31 and the the bolt 36, the the couplingmember 16 and The coupling 15 16 has therehad not the position of restthe dhave remained uninfluenced by the member 4", and the bolt 36 shouldhave remained in engagement In this case the movement of the bar 34 bythe slide 4 would have caused the simultaneous movement of the bar 34"and the bolt 36 and the uncoupling of the coupling 15 16'. This operatheamount pfennigs and the bar 34.

been moved from pfennig to 9 when a 10-mark piece is paid 1n. For this".4' is moved from IX to purpose an additional drum corresponding to themark-tensis to be provided.

. If the amount of purchase consists of pfennig-tens for instance isrepresented by 90' piennigs, and the amount paid in is 1 mark, the slide4 is first moved to IX, the gears 10, 10' and 10 are then brought'intoengagement with the racks 9, 13 and the slide 4 is moved from O to 1 andthe slide X whereby both are moved into the zero drums 1 and 1" 49 comesinto action 2 by dotted lines, r contact with. member 16, '1,6.;when'the knob crank 21 is th bir unable to.

comes into the operative position. d by osition. It is essential,however, thatthe rum 1 should have its projection I in the operativeposition in order that the proper change be delivered. For thispurposethe slide 4 is provided with a tooth 49 which acts upon a cam 50of the lever 24' and rotates the latter in -a direction which isopposite to the direction of rotation of the lever produced?by;the teeth22"? This tooth durin of the 'slide 'from'1IX- to (Fig. 5} and again'couples the coupling 1 5,16. f the enj. turned, gthp drum 1' is movedforward j' from the zjeliq'p bpitipn onetenth of arevolu'tion, and theprojection l The arrangement "tiff the slide 4', and the arrangement of:its teeth 22, 31, 49 and the parts cooperating therewith are repeated inthe parts corresponding to the hundreds, thousands, etc. and thereference numbers of these parts are indicated by the indices of theslides to which they belong.

I claim 1. A subtracting device for change-giving apparatus comprisingin combination a drum corresponding to the units of the minuend andarranged with its initial position at zero; drums correspondingrespectively to the tens and hundreds of the minuend and arranged withtheir initial positions shifted backward by one division from the-zeroposition; operating members adapted to be first set in accordance withthe subtrahend and thereafter in accordance with the minuend; andsupplementary actuating mechanism adapted after the operating membershave been set in accordance with the minuend to act upon the drums andcause same to be moved forward by onedivision, substantially as setforth.

2. A subtracting device-for change-giving apparatus comprising in;combination a rum correspond'in to the units ofthe minuend and arrangewith its initial position at zero; drums corresponding respectively tothe tens and hundreds of the mmuend and arranged with their initialpositions v backward one tenth of a revolution from the zero position;operating members adapted to be first set in accordance with thesubtrahend and thereafter in accordance with the minuend; andsupplementary actuating mechanism adapted after the operating membershave been set in accordance with the minuend to act upon the drums andcausesame to be moved forward one tenth of a revolution, substantiallyas set forth.

3. A subtracting device for change-giving apparatus comprising incombination a drum corresponding to the units of the minuend andarranged with its initial position at zero; drums correspondingrespectively to the tens and hundreds of the minuend and arranged withtheir initial position shifted the movementshifted backward one scaleand for throwing arranged with tenth of a revolution from the zeroposition; operating members adapted to be first set inaccordance withthe subtrahend and thereafter in accordance with the minu end; and meansfor throwing said actuating mechanism into and out of gear,substantially as set forth.

4. A subtracting device for change-giving apparatus comprising incombination a, drum, correspondingto the units of the minuend andarranged with its initial position at drum arranged with tion and me anszero; drums corresponding respectively to the tens and hundreds of theminuend and their initial positions shifted one tenth of a revolutionfrom the zero position; a slide to each drum an operating member adaptedto move over each slide and to be first set in accordance with thesubtrahend and thereafter with the minuend, and an auxiliary actuatingdevice for throwing each drum out of action when the operating membercorresponding thereto has been moved within the first nine tenths of itssaid drum into action when the slide is moved over the remaining tenthof its scale, substantially as set forth.

5. A subtracting device for change-giving apparatus comprising incombination a drum corresponding to the units of the minuend andarranged with its initial position at zero; drums correspondingrespectively to the tens and hundreds of the minuend andarranged withtheir initial posit-ions shifted backward one tenth of a revolution fromthe zero position; a slide to each drum; an oper ating member adapted tomove over each slide and to be first set in accordance with thesubtrahend and thereafter with the min uend; a supplementary actuatingdevice for each drum adapted after the operating member correspondingthereto has been set in accordance with the ,minuend to act upon itsdrum and cause same to be moved forward one tenth of a revolution; andmeans whereby on any of the operating members being moved to the end ofits scale, the actuating mechanism of the drum corresponding to the nexthigher figure is thrown out of operation, substantially as set forth.

6. A subtracting device for change-giving apparatus comprising a shaft,a units drum on said shaft arranged with itsinitial position at zero: atens drum and a hundreds drum on said shaft arranged with their initialpositions shifted backward one tenth of a revolution from the zeroposition; an operating member for each drum; a supplementary actuatingmechanism for each backward said toothed segments drum; a second shaftparallel to first shaft; and arms on said second shaft adaptedto bringthe auxiliary actuating mechanism ifnto operative position,substantially as set orth. 7. A subtracting device for change-giving aapparatus comprising a shaft; a units drum 1 on saidshaft arranged withtion at zero; a tensdrum and a hundreds their initial -positions shiftedbackward one-tenth of a revolution from the zero position; a slide foreach drum; an operating member adapted to move over each slide; asupplementary actuating device for each drum; a second shaft; arms onsaid second shaft adapted to bring the actuating mechanism intooperative posifor throwing said arms out of operative position when anoperating member is moved to the end of its slide, substantially as setforth.

8. A subtracting device for change-giving apparatus comprising a unitsdrum arranged with its initial position at zero; a tens drum. and ahundreds drum arranged with their initial positions shifted backward onetenth of a revolution; a scale for each drum; an operating memberadapted to move over each scale; a supplementary actuating mech anismfor each drum; toothed racks on the operating members corresponding tothe tons and hundreds drums which serve to hold the actuating mechanismsin their uncoupled positions during nine-tenths of the move ment of themembers over their scales; and a projection on said members which servesfor moving tion, substantially as set forth.

9. A subtracting device for change-giving apparatus comprising a shaft,a units drum thereon arranged with its initial position at zero; a tensdrum and a hundreds drum arranged on said shaft with their initialpositions shifted backward one tenth of a revolution; a scale for eachdrum; an operating member adapted to slide over each scale; a secondshaft; arms on said second shaft: toothed segments connected to saidarms and racks on said operating members adapted when the latter aremoved to the end of their scales to enter into engagement with which inturn move said arms into or out of operative position, substantially asset forth.

10. A subtracting device for change-giving apparatus comprising a shaft;a units drum thereon arranged with its initial position 'at zero; a tensdrumand a hundreds drum arranged on said shaft with their initialpositions shifted back one tenth of a revolution; a scale for each drum;an operating member adapted to slide over said scale; supplementaryactuating mechanism adapted to move the tens and hundreds drums forwardone tenth of a revolution; movable coupling members for moving the thesupplementary actuating mechanism into and out of operative position;controlling surfaces on said coupling members; a series of bars; springloaded bolts controlled from sa d controlling surfaces and adapted to bekept in engagement with said bars when its initial posithe drums intooperative posi said supplementary actuating mechanism is In testimonywhereof I have signed my 1n operative position; and means on the name tothis specification in the presence of operating members belng moved tothe ends two subscribing witnesses.

of said scales for rendering the supplemen- SIEGMU ND CHIGER. taryactuating mechanism inoperative and Witnesses:

for disengaging .said bolts from said bars, WOLDEMAR HAUPT,

substantially as set fort HENRY HASPER.

Copies of this patent may be obtained for five cents each, by addressi gthe commissioner of Patents,

' Washington, D. 0.

